Does IT Software Architectures > Serverless, ETL and ELT
Crawls data sources and generates Data Catalog

Sources:

Data Catalog

IMPORTANT

a Crawler can creates metadata in Data Catalog

A Glue job is used to perform ETL by scavenging from Data Catalog, jobs can be IT Software Architectures > Serverless or manual

Persistent storage of metadata about sources within a region.
One catalog per region per account